Welding device for stainless steel flat plate and welding method thereof

Abstract

The invention relates to the technical field of welding, and discloses a welding device for a stainless steel flat plate and a welding method thereof.The welding device comprises a welding table, a partition plate is fixedly installed on a bottom plate of the welding table, a controller is fixedly installed in the welding table, and the partition plate divides the bottom plate of the welding table into a first area and a second area. The circulating direction of the welding gun in the welding table is determined by selecting forward tilting welding or backward tilting welding, the welding gun can be switched between the two areas by moving the sliding seat in the sliding frame, the stainless steel flat plate bodies in the two areas can be alternately welded at the moment, the welding directions of the welding gun in the two areas are different, and the welding efficiency is improved. Therefore, when the position of the welding gun is switched, the inclination angle of the welding gun can be changed through the action of the linkage assembly, the included angle between the axis of the welding gun and the welding direction is consistent all the time, it is guaranteed that the same welding method is adopted when the welding gun conducts alternate welding, and then the consistency of the welding effect is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to a welding device for a stainless steel flat plate and a welding method thereof. Background Art

[0002] Stainless steel plate welding is the process of using welding equipment to melt the interface of two stainless steel plates and connect them into a whole. In the current welding process, when the welding equipment is used to operate on the plate, a specific angle is usually formed between the welding equipment and the plate. This angle is determined by the relative position of the axis of the welding equipment and the welding direction.

[0003] When the axis of the welding equipment forms an acute angle with the welding direction, that is, forward tilt welding, the discharge effect of the arc on the liquid metal in the molten pool is weakened, the liquid metal at the bottom of the molten pool becomes thicker, the penetration depth decreases, and the molten width increases, which helps to obtain a wider weld and a lower penetration depth, which is suitable for welding thin plates; on the contrary, when the axis of the welding equipment forms an obtuse angle with the welding direction, that is, backward tilt welding, it helps to achieve penetration and deep penetration of the weld, which is suitable for welding medium and thick plates or occasions where the penetration depth and strength of the weld need to be increased;

[0004] In automated welding, welding equipment usually needs to move back and forth along a fixed track to achieve welding of the entire workpiece. This movement method requires the welding equipment to return to the starting position after completing one weld to prepare for welding the next weld. In this process, if the welding equipment adopts the forward tilt welding method when welding from left to right, then if welding continues when resetting (returning), the backward tilt welding method will have to be adopted, which will result in different welding effects on the same plate due to different welding methods. If it is chosen not to perform welding operations when the welding equipment is reset, this will cause the welding equipment to weld only in a fixed moving direction to ensure that each weld adopts the same welding method. However, this method will increase the idle time of the welding equipment, thereby reducing the overall welding efficiency. Based on this, the present invention purposely provides a welding device and a welding method for a stainless steel plate that can ensure that the reciprocating welding equipment has the same welding method. Summary of the invention

[0005] The purpose of the present invention is to address the deficiencies in the prior art and provide a welding device and a welding method for a stainless steel plate that can ensure the same welding method for reciprocating welding equipment, so as to solve the technical problem of finding a balance between ensuring welding quality and improving welding efficiency during automated welding.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A welding device for a stainless steel plate, comprising:

[0008] A welding table, wherein a partition is fixedly installed on the bottom plate of the welding table, and a controller is fixedly installed therein, wherein the partition divides the bottom plate of the welding table into a first area and a second area, wherein the first area and the second area have the same area, and wherein two stainless steel flat plate bodies are clamped and fixed by a fixing assembly in both areas, and a welding gap is formed at the joint of the two stainless steel flat plate bodies;

[0009] A sliding frame is slidably mounted on a top plate of a welding table, a driving source for driving the sliding frame to reciprocate and translate is fixedly mounted on the welding table, a sliding seat is slidably mounted in the sliding frame, and a first output source for driving the sliding seat to reciprocate and translate is built in the sliding frame, the driving source and the first output source are both connected to a controller, a fixed frame is rotatably connected in the sliding seat, and a linkage assembly for driving the fixed frame to rotate is arranged in the sliding seat, and a welding gun is clamped and fixed on the fixed frame; and

[0010] When the sliding seat is located at one end of the sliding frame, the welding gun is aimed at one welding gap; when the sliding seat is located at the other end of the sliding frame, the welding gun is aimed at another welding gap; and when the first output source drives the sliding seat to move from one end to the other, the linkage assembly will drive the fixed frame to rotate, and the welding gun will rotate synchronously.

[0011] As a further solution of the present invention: the linkage assembly includes a first bevel gear, a second bevel gear, a rack plate and a transmission gear, the first bevel gear, the second bevel gear and the transmission gear are all rotatably installed on the sliding seat, the first bevel gear is meshed with the second bevel gear, the first bevel gear is fixedly connected to the fixed frame, the second bevel gear is fixedly connected to the transmission gear, and the rack plate is arranged at the bottom of the sliding frame, which is meshed with the transmission gear.

[0012] As a further solution of the present invention: the rack plate is slidably installed in the sliding frame, the sliding frame has a second output source built in to drive the rack plate to reciprocate, an ultrasonic sensor is fixedly installed on the partition, the ultrasonic sensor is located above the stainless steel flat plate body, and the ultrasonic sensor and the second output source are both connected to the controller.

[0013] As a further solution of the present invention: an abutment plate is slidably installed in the fixed frame, and a screw rod is threadedly connected thereon, the abutment plate abuts on the welding gun, and one end of the screw rod abuts on the abutment plate.

[0014] As a further solution of the present invention: the fixed component includes a fixed block and a lifting block, the fixed block is fixedly installed on the bottom plate of the welding table, the lifting block is slidably installed on the fixed block, and a built-in output source for driving the lifting block to rise and fall is provided in the fixed block, and the built-in output source is connected to the controller.

[0015] As a further solution of the present invention: a slide rail is fixedly installed on the top plate of the welding table, and the slide frame is slidably installed on the slide rail.

[0016] As a further solution of the present invention: cleaning ports are provided on both sides of the welding platform, cleaning pieces are provided in the cleaning ports, and the cleaning pieces cooperate with the welding gun head.

[0017] A method for welding a stainless steel plate, the method is applied to a stainless steel plate welding device as described above, the method comprising the following steps:

[0018] Step S1: First, the operator determines whether the stainless steel plate body is suitable for forward tilt welding or backward tilt welding, and switches to the corresponding mode through the controller;

[0019] Step S2: placing two stainless steel plate bodies in the first area and the second area respectively, and fixing the stainless steel plate bodies by a fixing assembly, so that a welding gap is formed at the joint of the two stainless steel plate bodies;

[0020] Step S3: the controller controls the driving source to drive the sliding frame to move from one end of the welding table to the other end, and at this time the welding gun will weld the welding gap between the two stainless steel plate bodies in the first zone;

[0021] Step S4: the controller controls the first output source to drive the sliding seat to move from one end of the sliding frame to the other end, and at this time the welding gun moves from the first area to the second area. The welding gun rotates under the action of the linkage assembly, so that the tilt direction of the welding gun after the sliding frame moves is opposite to the tilt direction of the welding gun before the sliding frame moves, and at this time the operator can replace the stainless steel plate body that has been welded in the first area;

[0022] Step S5: the controller controls the driving source to drive the sliding frame to reset, and at this time the welding gun will weld the welding gap between the two stainless steel plate bodies in the second zone;

[0023] Step S6: Repeat the above steps to alternately weld the stainless steel plate bodies in the first zone and the second zone, and the welding method used is the same.

[0024] Beneficial effects of the present invention:

[0025] 1. In the present invention, the welding table is divided into a first zone and a second zone, and two groups of stainless steel plate bodies to be welded are placed in the two zones respectively, and forward tilt welding or backward tilt welding is selected according to the thickness of the stainless steel plate body and the expected welding effect, that is, the circulation direction of the welding gun in the welding table is determined, and the welding gun can be switched between the two zones by moving the sliding seat in the sliding frame. At this time, the stainless steel plate bodies in the two zones can be welded alternately, and the welding directions of the welding gun in the two zones are different. Therefore, when the welding gun switches its position, the inclination angle of the welding gun can be changed through the action of the linkage component, so that the angle between its axis and the welding direction is always consistent, thereby ensuring that the welding gun adopts the same welding method when alternately welding, thereby ensuring the consistency of the welding effect, and when the welding gun switches its position, the welded stainless steel plate body can be replaced, avoiding the problem of reduced efficiency of batch welding due to excessive welding idle time;

[0026] 2. In the present invention, by rotating the screw rod to move it away from the abutment plate, the clamping of the abutment plate on the welding gun is loosened, and the welding gun can be removed from the fixed frame and replaced. This structure is convenient for operators to install different types of welding guns on the fixed frame, and can select a suitable welding gun for welding operation according to the specific type of the stainless steel plate body;

[0027] 3. In the present invention, a cleaning port is opened on the welding table, and a cleaning member is arranged in the cleaning port. When the first output source drives the sliding seat to translate on the sliding frame, the linkage assembly will drive the welding gun to rotate. During the rotation of the welding gun, one end of the welding gun will pass through the cleaning port and contact the cleaning member in the cleaning port. The cleaning member can remove spatter and oxide residues on the welding gun head, which can not only effectively clean and maintain the welding gun head, but also extend its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below in conjunction with the accompanying drawings.

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a structural schematic diagram of the top plate of the welding table in the present invention;

[0031] Figure 3 It is a structural schematic diagram of the sliding frame in the present invention;

[0032] Figure 4 It is a structural schematic diagram of the sliding seat in the present invention;

[0033] Figure 5 This is a diagram showing the cooperation between the sliding frame and the sliding seat in the present invention;

[0034] Figure 6 This is a diagram showing the cooperation between the sliding frame and the sliding seat in the present invention;

[0035] Figure 7 It is a diagram showing the cooperation between the sliding frame and the sliding seat in the present invention.

[0036] In the figure: 1. welding table; 101. slide rail; 102. cleaning port; 103. first zone; 104. second zone; 2. partition; 3. fixing assembly; 301. fixing block; 302. lifting block; 4. stainless steel flat plate body; 5. sliding frame; 6. sliding seat; 7. welding gun; 8. fixing frame; 801. screw; 802. abutment plate; 9. first bevel gear; 10. second bevel gear; 11. rack plate; 12. transmission gear. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] See also Figure 1-Figure 7 As shown, the present invention is a welding device for stainless steel flat plate, comprising:

[0039] A welding table 1, on the bottom plate of which a partition 2 is fixedly installed, and a controller is fixedly installed therein, the partition 2 divides the bottom plate of the welding table 1 into a first area 103 and a second area 104, the first area 103 and the second area 104 have the same area, and both of them are clamped and fixed by a fixing component 3, and a welding gap is formed at the joint of the two stainless steel flat plate bodies 4;

[0040] A sliding frame 5 is slidably mounted on the top plate of the welding table 1, a driving source for driving the sliding frame 5 to reciprocate is fixedly mounted on the welding table 1, a sliding seat 6 is slidably mounted in the sliding frame 5, and a first output source for driving the sliding seat 6 to reciprocate is built in the sliding frame 5, the driving source and the first output source are both connected to the controller, a fixed frame 8 is rotatably connected in the sliding seat 6, and a linkage component for driving the fixed frame 8 to rotate is arranged in the sliding seat 6, and a welding gun 7 is clamped and fixed on the fixed frame 8; and

[0041] When the sliding seat 6 is located at one end of the sliding frame 5, the welding gun 7 is aimed at one welding gap; when the sliding seat 6 is located at the other end of the sliding frame 5, the welding gun 7 is aimed at another welding gap; and when the first output source drives the sliding seat 6 to move from one end to the other end, the linkage assembly will drive the fixed frame 8 to rotate, and the welding gun 7 will rotate synchronously.

[0042] In one case of this embodiment, the driving source and the first output source can both be electric cylinders, reciprocating screws and other components, and other mechanisms that can achieve linear reciprocating motion can also be selected. This embodiment does not make specific limitations here; it should be noted that the controller described in the present invention includes a plc control system, a signal receiving / transmitting module, etc. The above technologies are prior arts, and the present invention does not improve them. Therefore, there is no need to disclose their specific mechanical structure and circuit structure, and it does not affect the integrity of the present invention.

[0043] In actual application of this embodiment, if the stainless steel plate body 4 is a thin plate, the controller switches to the forward tilting welding mode. Figure 1 As shown, firstly, two stainless steel plate bodies 4 are placed in the first zone 103 and the second zone 104 respectively, and the partition 2 is fixed by the fixing assembly 3. At this time, the two stainless steel plate bodies 4 are aligned to form a welding area. At this time, the angle between the axis of the welding gun 7 and the welding direction is an acute angle. Then, the driving source is controlled by the controller to drive the sliding frame 5 to move from the right end to the left end of the welding table 1, and the sliding seat 6 at one end of the sliding frame 5 will move synchronously. At this time, the welding gun 7 installed in the sliding seat 6 will first weld the two stainless steel plate bodies 4 in the first zone 103; Figure 5 As shown, at this time, the welding of the two stainless steel plate bodies 4 in the first zone 103 is completed, and then the controller controls the first output source to drive the sliding seat 6 to move from one end of the sliding frame 5 to the other end, that is, to move the welding gun 7 from the first zone 103 to the second zone 104. During the movement, the action of the linkage assembly causes the welding gun 7 to rotate counterclockwise; Figure 6 As shown, at this time, the angle between the axis of the welding gun 7 and the welding direction is still an acute angle, and the driving source is controlled by the controller to drive the sliding frame 5 to move from left to right, that is, the sliding frame 5 is reset, and the welding gun 7 will weld the two stainless steel plate bodies 4 in the second area 104. At the same time, the operator can remove the two welded stainless steel plate bodies 4 in the first area 103 and place two new stainless steel plate bodies 4; Figure 7 As shown, at this time, the welding of the two stainless steel plate bodies 4 in the second zone 104 is completed, and then the controller controls the first output source to drive the sliding seat 6 to reset in the sliding frame 5, that is, the welding gun 7 moves from the second zone 104 to the first zone 103. In this process, the action of the linkage assembly causes the welding gun 7 to rotate clockwise, thereby returning to Figure 1 In the state shown, batch welding of the stainless steel plate body 4 can be realized by repeating the process in this way. In the process, the welding gun 7 actually rotates clockwise in the welding table 1, and the inclination angle of the welding gun 7 can be changed under the drive of the linkage assembly, so as to ensure that the angle between the axis of the welding gun 7 and the welding direction is an acute angle, thereby ensuring that the forward tilt welding is always performed;

[0044] If the stainless steel plate body 4 is in the range of medium and thick plates, the controller switches to the backward tilting welding mode, and the control source controls the driving source to move the sliding frame 5 and the sliding seat 6 to the position where the sliding frame 5 and the sliding seat 6 are moved. Figure 5 In the state shown, when the sliding frame 5 moves from left to right for welding, the welding gun 7 welds the two stainless steel plate bodies 4. At this time, the angle between the axis of the welding gun 7 and the welding direction is an obtuse angle, so that backward tilt welding is used. Then the welding gun 7 circulates counterclockwise in the welding table 1, and in this process, driven by the linkage assembly, the tilt direction of the welding gun 7 will change, always ensuring that the angle between the axis of the welding gun 7 and the welding direction is an obtuse angle, thereby ensuring that backward tilt welding is always performed;

[0045] The welding table 1 is divided into a first zone 103 and a second zone 104, and two groups of stainless steel plate bodies 4 to be welded are placed in the two zones respectively, and forward tilt welding or backward tilt welding is selected according to the thickness of the stainless steel plate body 4 and the expected welding effect, that is, the circulation direction of the welding gun 7 in the welding table 1 is determined, and the welding gun 7 can be switched between the two zones by moving the sliding seat 6 in the sliding frame 5. At this time, the stainless steel plate bodies 4 in the two zones can be welded alternately, and the welding directions of the welding gun 7 in the two zones are different. Therefore, when the welding gun 7 switches its position, the inclination angle of the welding gun 7 can be changed through the action of the linkage component, so that the angle between its axis and the welding direction is always consistent, thereby ensuring that the welding gun 7 adopts the same welding method when alternately welding, thereby ensuring the consistency of the welding effect, and when the welding gun 7 switches its position, the welded stainless steel plate body 4 can be replaced, avoiding the problem of reduced efficiency of batch welding due to excessive welding idle time.

[0046] like Figure 2-Figure 4 As shown, as a preferred embodiment of the present invention, the linkage assembly includes a first bevel gear 9, a second bevel gear 10, a rack plate 11 and a transmission gear 12, the first bevel gear 9, the second bevel gear 10 and the transmission gear 12 are all rotatably mounted on the sliding seat 6, the first bevel gear 9 is meshed with the second bevel gear 10, the first bevel gear 9 is fixedly connected to the fixed frame 8, the second bevel gear 10 is fixedly connected to the transmission gear 12, and the rack plate 11 is arranged at the bottom of the sliding frame 5, which is meshed with the transmission gear 12.

[0047] In actual application of this embodiment, when the controller controls the first output source to drive the sliding seat 6 to move on the sliding frame 5, the meshing relationship between the transmission gear 12 and the rack plate 11 will cause the transmission gear 12 to rotate when the sliding seat 6 moves, and the rotation of the transmission gear 12 will drive the second bevel gear 10 to rotate. Due to the meshing relationship between the second bevel gear 10 and the first bevel gear 9, the first bevel gear 9 rotates synchronously with the second bevel gear 10, and the first bevel gear 9 will drive the fixed frame 8 to rotate, so that the welding gun 7 rotates synchronously, changing the inclination angle, and the angle of the welding gun 7 before moving is opposite to that of the welding gun 7 after moving; through the reciprocating translation of the sliding seat 6 in the sliding frame 5, the welding gun 7 can be alternated in the first zone 103 and the second zone 104, and during the movement, through the action of the linkage component, the angle of the welding gun 7 can be changed, so that the inclination angles of the welding gun 7 in the two zones are opposite, thereby ensuring that the angle between the welding gun 7 and the welding gap is consistent during welding, thereby improving the quality of welding.

[0048] like Figure 1-Figure 3 As shown, as a preferred embodiment of the present invention, the rack plate 11 is slidably installed in the sliding frame 5, and the sliding frame 5 has a second output source built in to drive the rack plate 11 to reciprocate, and an ultrasonic sensor is fixedly installed on the partition 2, and the ultrasonic sensor is located above the stainless steel flat plate body 4, and the ultrasonic sensor and the second output source are both connected to the controller.

[0049] In one case of this embodiment, the second output source may be an electric cylinder, an electric telescopic rod or other components, or other mechanisms capable of realizing linear reciprocating motion, which is not specifically limited in this embodiment; it should be noted that the ultrasonic sensor described in the present invention is a prior art, and the present invention does not improve it. Therefore, there is no need to disclose their specific mechanical structure and circuit structure, which does not affect the integrity of the present invention.

[0050] In actual application of this embodiment, before each time the sliding frame 5 is used to translate and drive the welding gun 7 to weld the two stainless steel plate bodies 4, the specific thickness of the stainless steel plate body 4 is measured by the ultrasonic sensor and fed back to the controller. According to the specific thickness, the controller will control the second output source to drive the rack plate 11 to translate, thereby actively rotating the transmission gear 12, and then the second bevel gear 10 drives the first bevel gear 9 to rotate, as well as the fixed frame 8 and the welding gun 7 to rotate. At this time, the specific angle between the welding gun 7 and the welding gap will change. The purpose is to select a suitable welding method based on the specific thickness of the stainless steel plate body 4, and to adopt a more suitable welding angle to ensure that the greater the thickness of the stainless steel plate body 4, the greater the angle between the welding gun 7 and the welding gap; at the same time, before the controller controls the first output source to drive the sliding seat 6 to translate, it is necessary to control the second output source to drive the rack plate 11 back to its original position.

[0051] like Figure 4 As shown, as a preferred embodiment of the present invention, an abutment plate 802 is slidably installed in the fixed frame 8, and a screw 801 is threadedly connected thereto, the abutment plate 802 abuts on the welding gun 7, and one end of the screw 801 abuts on the abutment plate 802.

[0052] In actual application of this embodiment, by rotating the screw rod 801 to move it away from the abutment plate 802, the abutment plate 802 loosens the clamping of the welding gun 7, and the welding gun 7 can be removed from the fixed frame 8 and replaced. This structure makes it easy for the operator to install different types of welding guns 7 on the fixed frame 8, and can select a suitable welding gun 7 for welding operations according to the specific type of the stainless steel plate body 4.

[0053] like Figure 1 As shown, as a preferred embodiment of the present invention, the fixed component 3 includes a fixed block 301 and a lifting block 302, the fixed block 301 is fixedly installed on the bottom plate of the welding table 1, and the lifting block 302 is slidably installed on the fixed block 301, and a built-in output source for driving the lifting block 302 to rise and fall is provided in the fixed block 301, and the built-in output source is connected to the controller.

[0054] In one case of this embodiment, the built-in output source may be an electric cylinder, an electric telescopic rod or other components, or other mechanisms capable of achieving lifting motion, which is not specifically limited in this embodiment.

[0055] In actual application of this embodiment, after the welding gun 7 completes the welding of the two stainless steel flat bodies 4, the controller controls the built-in output source to drive the lifting block 302 to rise, thereby releasing the clamping and fixation of the two stainless steel flat bodies 4 that have completed the welding. At this time, the operator can remove the stainless steel flat body 4 and place a new stainless steel flat body 4 on the welding table 1. Then the controller controls the built-in output source to drive the lifting block 302 to descend, fix the stainless steel flat body 4, and wait for the next welding.

[0056] like Figure 2 As shown, as a preferred embodiment of the present invention, the top plate of the welding table 1 is fixedly installed with a slide rail 101, and the sliding frame 5 is slidably installed on the slide rail 101. The setting of the slide rail 101 provides a clear and smooth sliding path for the sliding frame 5, ensuring that it can move smoothly on the top plate of the welding table 1.

[0057] like Figure 1 As shown, as a preferred embodiment of the present invention, cleaning ports 102 are provided on both sides of the welding table 1, and cleaning pieces are provided in the cleaning ports 102, and the cleaning pieces cooperate with the head of the welding gun 7.

[0058] In one case of this embodiment, the cleaning member is a wire brush, which is resistant to high temperatures and is suitable for cleaning the welding gun 7 that has just completed welding work.

[0059] In actual application of this embodiment, when the first output source drives the sliding seat 6 to translate on the sliding frame 5, the linkage assembly will drive the welding gun 7 to rotate. During the rotation of the welding gun 7, one end of the welding gun 7 will pass through the cleaning port 102 and contact the cleaning member in the cleaning port 102. The cleaning member can remove spatter and oxide residues on the head of the welding gun 7, which can not only effectively clean and maintain the head of the welding gun 7, but also extend its service life.

[0060] See also Figure 1-Figure 7 As shown, the present invention is a welding method for a stainless steel plate, the method is applied to a stainless steel plate welding device as described in the above embodiment, and the method comprises the following steps:

[0061] Step S1: First, the operator determines whether the stainless steel plate body 4 is suitable for forward tilt welding or backward tilt welding, and switches to the corresponding mode through the controller;

[0062] Step S2: two stainless steel plate bodies 4 are placed in the first area 103 and the second area 104 respectively, and the stainless steel plate bodies 4 are fixed by the fixing assembly 3, and a welding gap is formed at the joint of the two stainless steel plate bodies 4;

[0063] Step S3: the controller controls the driving source to drive the sliding frame 5 to move from one end of the welding table 1 to the other end, and at this time the welding gun 7 will weld the welding gap between the two stainless steel plate bodies 4 in the first zone 103;

[0064] Step S4: the controller controls the first output source to drive the sliding seat 6 to move from one end of the sliding frame 5 to the other end. At this time, the welding gun 7 moves from the first area 103 to the second area 104. The welding gun 7 rotates under the action of the linkage assembly, so that the tilt direction of the welding gun 7 after the sliding frame 5 moves is opposite to the tilt direction of the welding gun 7 before the sliding frame 5 moves. At this time, the operator can replace the stainless steel plate body 4 that has been welded in the first area 103;

[0065] Step S5: the controller controls the driving source to drive the sliding frame 5 to reset, and at this time the welding gun 7 will weld the welding gap between the two stainless steel plate bodies 4 in the second zone 104;

[0066] Step S6: Repeat the above steps to alternately weld the stainless steel plate body 4 in the first zone 103 and the second zone 104, and use the same welding method.

[0067] Working principle of the present invention: The above embodiment of the present invention provides a welding device and a welding method for a stainless steel flat plate, which is divided into a first zone 103 and a second zone 104, and two groups of stainless steel flat plate bodies 4 to be welded are placed in the two zones respectively, and forward tilt welding or backward tilt welding is selected according to the thickness of the stainless steel flat plate body 4 and the expected welding effect, that is, the circulation direction of the welding gun 7 in the welding table 1 is determined, and the sliding seat 6 is moved in the sliding frame 5 to enable the welding gun 7 to switch between the two zones. At this time, the stainless steel flat plate bodies 4 in the two zones can be welded alternately, and the welding directions of the welding gun 7 in the two zones are different. Therefore, when the welding gun 7 switches its position, the inclination angle of the welding gun 7 can be changed through the action of the linkage component, so that the angle between its axis and the welding direction is always consistent, thereby ensuring that the welding gun 7 adopts the same welding method when alternately welding, thereby ensuring the consistency of the welding effect, and when the welding gun 7 switches its position, the welded stainless steel flat plate body 4 can be replaced.

[0068] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A welding device for stainless steel flat plate, characterized in that: include: A welding table (1) has a partition (2) fixedly mounted on its bottom plate, and a controller fixedly mounted therein, the partition (2) dividing the bottom plate of the welding table (1) into a first area (103) and a second area (104), the first area (103) and the second area (104) having the same area, and two stainless steel flat plate bodies (4) are clamped and fixed in both areas by a fixing assembly (3), and a welding gap is formed at the joint of the two stainless steel flat plate bodies (4); A sliding frame (5) is slidably mounted on a top plate of a welding table (1); a driving source for driving the sliding frame (5) to reciprocate is fixedly mounted on the welding table (1); a sliding seat (6) is slidably mounted in the sliding frame (5), and a first output source for driving the sliding seat (6) to reciprocate is built in the sliding frame (5); the driving source and the first output source are both connected to a controller; a fixed frame (8) is rotatably connected in the sliding seat (6), and a linkage assembly for driving the fixed frame (8) to rotate is arranged in the sliding seat; a welding gun (7) is clamped and fixed on the fixed frame (8); and When the sliding seat (6) is located at one end of the sliding frame (5), the welding gun (7) is aimed at a welding gap; when the sliding seat (6) is located at the other end of the sliding frame (5), the welding gun (7) is aimed at another welding gap; and when the first output source drives the sliding seat (6) to move from one end to the other end, the linkage component drives the fixed frame (8) to rotate, and the welding gun (7) rotates synchronously.

2. A stainless steel flat plate welding device according to claim 1, characterized in that: The linkage assembly comprises a first bevel gear (9), a second bevel gear (10), a rack plate (11) and a transmission gear (12); the first bevel gear (9), the second bevel gear (10) and the transmission gear (12) are all rotatably mounted on a sliding seat (6); the first bevel gear (9) is meshed with the second bevel gear (10); the first bevel gear (9) is fixedly connected to a fixed frame (8); the second bevel gear (10) is fixedly connected to the transmission gear (12); the rack plate (11) is arranged at the bottom of the sliding frame (5) and is meshed with the transmission gear (12).

3. A stainless steel flat plate welding device according to claim 2, characterized in that: The rack plate (11) is slidably mounted in a sliding frame (5), and a second output source is built into the sliding frame (5) for driving the rack plate (11) to reciprocate and translate. An ultrasonic sensor is fixedly mounted on the partition (2), and the ultrasonic sensor is located above the stainless steel flat plate body (4). The ultrasonic sensor and the second output source are both connected to a controller.

4. A welding device for a stainless steel flat plate according to claim 1, characterized in that: An abutment plate (802) is slidably mounted in the fixed frame (8), and a screw rod (801) is threadedly connected thereto; the abutment plate (802) abuts against the welding gun (7), and one end of the screw rod (801) abuts against the abutment plate (802).

5. A stainless steel flat plate welding device according to claim 1, characterized in that: The fixing assembly (3) comprises a fixing block (301) and a lifting block (302); the fixing block (301) is fixedly mounted on a bottom plate of the welding table (1); the lifting block (302) is slidably mounted on the fixing block (301); a built-in output source for driving the lifting block (302) to move up and down is arranged in the fixing block (301); and the built-in output source is connected to a controller.

6. A welding device for a stainless steel flat plate according to claim 1, characterized in that: A slide rail (101) is fixedly mounted on the top plate of the welding table (1), and the slide frame (5) is slidably mounted on the slide rail (101).

7. A stainless steel flat plate welding device according to claim 1, characterized in that: Cleaning ports (102) are provided on both sides of the welding platform (1), and a cleaning piece is provided in the cleaning port (102), and the cleaning piece cooperates with the head of the welding gun (7).

8. A welding method for a stainless steel plate, characterized in that: The method is applied to a stainless steel flat plate welding device as described in any one of claims 1 to 7, and the method comprises the following steps: Step S1: First, the operator determines whether the stainless steel plate body (4) is suitable for forward tilt welding or backward tilt welding, and switches to the corresponding mode through the controller; Step S2: placing two stainless steel plate bodies (4) in the first area (103) and the second area (104) respectively, and fixing the stainless steel plate bodies (4) by means of the fixing assembly (3), so that a welding gap is formed at the joint of the two stainless steel plate bodies (4); Step S3: The controller controls the driving source to drive the sliding frame (5) to move from one end of the welding table (1) to the other end, and at this time, the welding gun (7) will weld the welding gap between the two stainless steel plate bodies (4) in the first zone (103); Step S4: the controller controls the first output source to drive the sliding seat (6) to move from one end of the sliding frame (5) to the other end, and at this time the welding gun (7) moves from the first area (103) to the second area (104). The welding gun (7) rotates under the action of the linkage assembly, so that the tilting direction of the welding gun (7) after the sliding frame (5) moves is opposite to the tilting direction of the welding gun (7) before the sliding frame (5) moves, and at this time the operator can replace the stainless steel plate body (4) that has been welded in the first area (103); Step S5: the controller controls the driving source to drive the sliding frame (5) to reset, and at this time the welding gun (7) will weld the welding gap between the two stainless steel plate bodies (4) in the second zone (104); Step S6: Repeat the above steps to alternately weld the stainless steel plate body (4) in the first zone (103) and the second zone (104), and use the same welding method.

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